-
Notifications
You must be signed in to change notification settings - Fork 127
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #1274 from sincorchetes/master
Create change_kernel_boot.rst
- Loading branch information
Showing
1 changed file
with
234 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,234 @@ | ||
| .. _change_kernel_boot: | ||
|
|
||
| Change Kernel Boot | ||
| ######################## | ||
|
|
||
| This tutorial explains the process of change kernel boot entry |CL-ATTR|. | ||
|
|
||
| .. contents:: | ||
| :local: | ||
| :depth: 1 | ||
|
|
||
| Description | ||
| *********** | ||
|
|
||
| For this tutorial, you will modify your kernel list to boot with the kernel you want to use. This process is valid when you cannot compile third-party kernel modules and need to come back to old, or if you compile your custom kernel. | ||
|
|
||
|
|
||
| Get the current boot status | ||
| *************************** | ||
|
|
||
| .. code-block:: bash | ||
| bootctl status | ||
| This is an example output: | ||
|
|
||
| .. code-block:: bash | ||
| System: | ||
| Firmware: UEFI 2.70 (HP 265.256) | ||
| Firmware Arch: x64 | ||
| Secure Boot: disabled | ||
| TPM2 Support: yes | ||
| Measured UKI: no | ||
| Boot into FW: supported | ||
| Current Boot Loader: | ||
| Product: systemd-boot 255 | ||
| Features: ✓ Boot counting | ||
| ✓ Menu timeout control | ||
| ✓ One-shot menu timeout control | ||
| ✓ Default entry control | ||
| ✓ One-shot entry control | ||
| ✓ Support for XBOOTLDR partition | ||
| ✓ Support for passing random seed to OS | ||
| ✓ Load drop-in drivers | ||
| ✓ Support Type #1 sort-key field | ||
| ✓ Support @saved pseudo-entry | ||
| ✓ Support Type #1 devicetree field | ||
| ✓ Enroll SecureBoot keys | ||
| ✓ Retain SHIM protocols | ||
| ✓ Menu can be disabled | ||
| ✓ Boot loader sets ESP information | ||
| ESP: /dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5 | ||
| File: └─/EFI/org.clearlinux/loaderx64.efi | ||
| Random Seed: | ||
| System Token: set | ||
| Exists: yes | ||
| Available Boot Loaders on ESP: | ||
| ESP: /boot (/dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5) | ||
| File: ├─/EFI/systemd/systemd-bootx64.efi (systemd-boot 255) | ||
| └─/EFI/BOOT/BOOTX64.EFI (systemd-boot 255) | ||
| Boot Loaders Listed in EFI Variables: | ||
| Title: Linux bootloader | ||
| ID: 0x0007 | ||
| Status: active, boot-order | ||
| Partition: /dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5 | ||
| File: └─/EFI/org.clearlinux/bootloaderx64.efi | ||
| Title: Linux Boot Manager | ||
| ID: 0x0001 | ||
| Status: active, boot-order | ||
| Partition: /dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5 | ||
| File: └─/EFI/systemd/systemd-bootx64.efi | ||
| Title: Windows Boot Manager | ||
| ID: 0x0000 | ||
| Status: active, boot-order | ||
| Partition: /dev/disk/by-partuuid/48d8a9eb-d84d-4a62-8302-edff383290e5 | ||
| File: └─/EFI/Microsoft/Boot/bootmgfw.efi | ||
| Boot Loader Entries: | ||
| $BOOT: /boot (/dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5) | ||
| token: clear-linux-os | ||
| Default Boot Loader Entry: | ||
| type: Boot Loader Specification Type #1 (.conf) | ||
| title: Clear Linux OS (Clear-linux-native-6.8.10-1434.conf) | ||
| id: Clear-linux-native-6.8.10-1434.conf | ||
| source: /boot//loader/entries/Clear-linux-native-6.8.10-1434.conf | ||
| linux: /boot//EFI/org.clearlinux/kernel-org.clearlinux.native.6.8.10-1434 | ||
| initrd: /boot//EFI/org.clearlinux/freestanding-00-early-ucode.cpio | ||
| /boot//EFI/org.clearlinux/initrd-org.clearlinux.native.6.8.10-1434 | ||
| /boot//EFI/org.clearlinux/freestanding-clr-init.cpio.gz | ||
| /boot//EFI/org.clearlinux/freestanding-i915-firmware.cpio | ||
| options: root=UUID=67e7ac9a-f7a1-4d5e-bbd6-012f5fa81cb5 rd.luks.uuid=abe6aaf2-3425-4eb1-b7f5-3f36746426fa quiet console=tty0 console=ttyS0,115200n8 cryptomgr.notests init=/usr/bin/initra-desktop initcall> | ||
| lines 20-71/71 (END) | ||
| ✓ Support @saved pseudo-entry | ||
| ✓ Support Type #1 devicetree field | ||
| ✓ Enroll SecureBoot keys | ||
| ✓ Retain SHIM protocols | ||
| ✓ Menu can be disabled | ||
| ✓ Boot loader sets ESP information | ||
| ESP: /dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5 | ||
| File: └─/EFI/org.clearlinux/loaderx64.efi | ||
| Random Seed: | ||
| System Token: set | ||
| Exists: yes | ||
| Available Boot Loaders on ESP: | ||
| ESP: /boot (/dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5) | ||
| File: ├─/EFI/systemd/systemd-bootx64.efi (systemd-boot 255) | ||
| └─/EFI/BOOT/BOOTX64.EFI (systemd-boot 255) | ||
| Boot Loaders Listed in EFI Variables: | ||
| Title: Linux bootloader | ||
| ID: 0x0007 | ||
| Status: active, boot-order | ||
| Partition: /dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5 | ||
| File: └─/EFI/org.clearlinux/bootloaderx64.efi | ||
| Title: Linux Boot Manager | ||
| ID: 0x0001 | ||
| Status: active, boot-order | ||
| Partition: /dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5 | ||
| File: └─/EFI/systemd/systemd-bootx64.efi | ||
| Title: Windows Boot Manager | ||
| ID: 0x0000 | ||
| Status: active, boot-order | ||
| Partition: /dev/disk/by-partuuid/48d8a9eb-d84d-4a62-8302-edff383290e5 | ||
| File: └─/EFI/Microsoft/Boot/bootmgfw.efi | ||
| Boot Loader Entries: | ||
| $BOOT: /boot (/dev/disk/by-partuuid/ea2e4278-5c0c-4498-bc99-dfc48a71ceb5) | ||
| token: clear-linux-os | ||
| Default Boot Loader Entry: | ||
| type: Boot Loader Specification Type #1 (.conf) | ||
| title: Clear Linux OS (Clear-linux-native-6.8.10-1434.conf) | ||
| id: Clear-linux-native-6.8.10-1434.conf | ||
| source: /boot//loader/entries/Clear-linux-native-6.8.10-1434.conf | ||
| linux: /boot//EFI/org.clearlinux/kernel-org.clearlinux.native.6.8.10-1434 | ||
| initrd: /boot//EFI/org.clearlinux/freestanding-00-early-ucode.cpio | ||
| /boot//EFI/org.clearlinux/initrd-org.clearlinux.native.6.8.10-1434 | ||
| /boot//EFI/org.clearlinux/freestanding-clr-init.cpio.gz | ||
| /boot//EFI/org.clearlinux/freestanding-i915-firmware.cpio | ||
| options: root=UUID=67e7ac9a-f7a1-4d5e-bbd6-012f5fa81cb5 rd.luks.uuid=abe6aaf2-3425-4eb1-b7f5-3f36746426fa quiet console=tty0 console=ttyS0,115200n8 cryptomgr.notests init=/usr/bin/initra-desktop initcall_debug intel_iommu=igfx_off kvm-intel.nested=1 no_timer_check noreplace-smp page_alloc.shuffle=1 rcupdate.rcu_expedited=1 rootfstype=ext4,btrfs,xfs,f2fs tsc=reliable rw module.sig_unenforce rootflags=x-systemd.device-timeout=0 | ||
| Get the kernel list installed | ||
| ***************************** | ||
|
|
||
| .. code-block:: bash | ||
| bootctl list | ||
| And example output: | ||
|
|
||
| .. code-block:: bash | ||
| type: Boot Loader Specification Type #1 (.conf) | ||
| title: Clear Linux OS (Clear-linux-preempt_rt-6.1.38-105.conf) | ||
| id: Clear-linux-preempt_rt-6.1.38-105.conf | ||
| source: /boot//loader/entries/Clear-linux-preempt_rt-6.1.38-105.conf | ||
| linux: /boot//EFI/org.clearlinux/kernel-org.clearlinux.preempt_rt.6.1.38-105 | ||
| initrd: /boot//EFI/org.clearlinux/freestanding-00-early-ucode.cpio | ||
| /boot//EFI/org.clearlinux/freestanding-clr-init.cpio.gz | ||
| /boot//EFI/org.clearlinux/freestanding-i915-firmware.cpio | ||
| options: root=UUID=67e7ac9a-f7a1-4d5e-bbd6-012f5fa81cb5 rd.luks.uuid=abe6aaf2-3425-4eb1-b7f5-3f36746426fa quiet console=tty0 console=ttyS0,115200n8 cryptomgr.notests init=/usr/bin/initra-desktop initcall_debug intel_iommu=igfx_off kvm-intel.nested=1 no_timer_check noreplace-smp page_alloc.shuffle=1 rcupdate.rcu_expedited=1 rootfstype=ext4,btrfs,xfs t> | ||
| type: Boot Loader Specification Type #1 (.conf) | ||
| title: Clear Linux OS (Clear-linux-native-6.9.1-1436.conf) | ||
| id: Clear-linux-native-6.9.1-1436.conf | ||
| source: /boot//loader/entries/Clear-linux-native-6.9.1-1436.conf | ||
| linux: /boot//EFI/org.clearlinux/kernel-org.clearlinux.native.6.9.1-1436 | ||
| initrd: /boot//EFI/org.clearlinux/freestanding-00-early-ucode.cpio | ||
| /boot//EFI/org.clearlinux/initrd-org.clearlinux.native.6.9.1-1436 | ||
| /boot//EFI/org.clearlinux/freestanding-clr-init.cpio.gz | ||
| /boot//EFI/org.clearlinux/freestanding-i915-firmware.cpio | ||
| options: root=UUID=67e7ac9a-f7a1-4d5e-bbd6-012f5fa81cb5 rd.luks.uuid=abe6aaf2-3425-4eb1-b7f5-3f36746426fa quiet console=tty0 console=ttyS0,115200n8 cryptomgr.notests init=/usr/bin/initra-desktop initcall_debug intel_iommu=igfx_off kvm-intel.nested=1 no_timer_check noreplace-smp page_alloc.shuffle=1 rcupdate.rcu_expedited=1 rootfstype=ext4,btrfs,xfs,f> | ||
| type: Boot Loader Specification Type #1 (.conf) | ||
| title: Clear Linux OS (Clear-linux-native-6.8.10-1434.conf) (default) (selected) | ||
| id: Clear-linux-native-6.8.10-1434.conf | ||
| source: /boot//loader/entries/Clear-linux-native-6.8.10-1434.conf | ||
| linux: /boot//EFI/org.clearlinux/kernel-org.clearlinux.native.6.8.10-1434 | ||
| initrd: /boot//EFI/org.clearlinux/freestanding-00-early-ucode.cpio | ||
| /boot//EFI/org.clearlinux/initrd-org.clearlinux.native.6.8.10-1434 | ||
| /boot//EFI/org.clearlinux/freestanding-clr-init.cpio.gz | ||
| /boot//EFI/org.clearlinux/freestanding-i915-firmware.cpio | ||
| options: root=UUID=67e7ac9a-f7a1-4d5e-bbd6-012f5fa81cb5 rd.luks.uuid=abe6aaf2-3425-4eb1-b7f5-3f36746426fa quiet console=tty0 console=ttyS0,115200n8 cryptomgr.notests init=/usr/bin/initra-desktop initcall_debug intel_iommu=igfx_off kvm-intel.nested=1 no_timer_check noreplace-smp page_alloc.shuffle=1 rcupdate.rcu_expedited=1 rootfstype=ext4,btrfs,xfs,f> | ||
| type: Automatic | ||
| title: Reboot Into Firmware Interface | ||
| id: auto-reboot-to-firmware-setup | ||
| source: /sys/firmware/efi/efivars/LoaderEntries-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f | ||
| Set default kernel to boot | ||
| ************************** | ||
|
|
||
| You can check the id from the latest command: | ||
|
|
||
| .. code-block:: bash | ||
| bootctl list |grep id: |cut -f 2 -d ":" | ||
| id: Clear-linux-preempt_rt-6.1.38-105.conf | ||
| id: Clear-linux-native-6.9.1-1436.conf | ||
| id: Clear-linux-native-6.8.10-1434.conf | ||
| id: auto-reboot-to-firmware-setup | ||
| Set the kernel | ||
|
|
||
| .. code-block:: bash | ||
| sudo bootctl set-default ID | ||
| For example to set 6.9.1 entry: | ||
|
|
||
| .. code-block:: bash | ||
| sudo bootctl set-default Clear-linux-native-6.9.1-1436.conf | ||
| Just reboot | ||
|
|
||
| .. code-block:: bash | ||
| sudo systemctl reboot | ||
| You will boot with the kernel set before. |